Subtraction Flashcards
1
Q
10-9
A
1
2
Q
20-3
A
17
3
Q
100-99
A
1
4
Q
25-10
A
15
5
Q
321
-111
A
210
6
Q
65
-52
A
13
7
Q
9-8
A
1
8
Q
23-11
A
12
9
Q
8-1
A
7
10
Q
8-2
A
6
11
Q
8-3
A
5
12
Q
8-4
A
4
13
Q
8-5
A
3
14
Q
8-6
A
2
15
Q
8-7
A
1
16
Q
8-8
A
0
17
Q
12
-1
A
11
18
Q
12
-3
A
9
19
Q
12
-4
A
8
20
Q
12
-5
A
7
21
Q
12
-6
A
6
22
Q
12
-7
A
5
23
Q
12
-8
A
4
24
Q
12
-9
A
3
25
Q
12
-10
A
2
26
Q
22-11
A
11
27
Q
23
-21
A
2
28
Q
450
-320
A
130
29
Q
6523
-5312
A
1211
30
Q
169
-160
A
9
